<!DOCTYPE html>
<html>
<head>
<script>
function boom() {
  document.body.style.textIndent = "0%";
}
</script>

<style>
body { float: left; }
.c { padding-left: 60%; padding-right: 60%; white-space: pre; }
.f { float: left; height: 2em; }
</style>
</head>

<body onload="boom()">

<div class="c"> <div class="f">a</div>
 <div class="f">b</div></div>

</body>
</html>
